High Temperature
Showing all 4 results
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Mark 708HT Series Control Valve
Read moreThe Mark 708HT Series has a cooling fin bonnet option for protection of the stem packing from elevated temperatures associated with steam, hot water and high temperature oil, gas and liquid services. The finned bonnet cools the area around the packing, which permits the use of standard packing materials that otherwise would not be suitable for the service temperature conditions.
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Mark 708MV Series with Motor Valve
Read moreThe Mark 708MV offers several advantages including extreme accuracy, high turndown ratios and repeatability. The features of his high resolution, low hysteresis digitally controlled motor makes the MK708MV a premiere control valve for applications involving chemical injection, dosing, pilot plants and research labs. In addition, it is a prime valve for skid builders. Additional features of the MK708MV include a switch-selectable power supply, a handwheel for manual operation and a 4-20 mA or split range current input signal. 0-5 or 0-10 VDC voltage signal, 4-20mA feedback, and various protective enclosure classes are standard features on these motors. Upon loss of input (not loss of power), the motor is designed to either lock in place, or fail to minimum input signal position.
Minimum Data Requirements to Size Valve -
Mark 5800HP Series – Back Pressure Regulator
Read moreThe Mark 5800HP is a high pressure, back pressure regulator designed to maintain upstream pressure of gases and liquids. As a compact, lightweight product, it is well suited for applications where space and weight are at a premium. With a robust, piston design, the Mark 5800HP can handle setpoints up to 2500 psig (172 bar) at 450°F (232°C) with ease and large flow capacity for a valve of this style is among the highest in the industry. The T-bar adjusting handle allows for a lighter spring and more sensitive regulator than those models with a fixed knob.
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Mark 5850HP Series – High Pressure Back Pressure Regulator
Read moreThe Mark 5850HP is a high pressure, back pressure regulator designed to maintain upstream pressure of gases and liquids. As a compact, lightweight product, it is well suited for applications where space and weight are at a premium.
With a robust piston design, the Mark 5850HP can handle setpoints up to 5000 psig (345 bar) at 100°F (37,8°C) with ease. The T-bar adjusting handle allows convenient, precise final setpoint adjustment.
